Rolling-mill.



J. FAWELL.

ROLLING MILL. APPLICATION FILED EAR. 8, 1912.

Patented Deb. 10, 1912.

3 8HEET8-SKEET 1.

wrruzsszszy s I mvam'on l xaw r" I J. FAWELL.

ROLLING MILL.

APPLICATION rum) MALE. 1912. 1,047,023, L Y Patented D60. 10, 1912.

3 SHEETS-SHEET 2.

I lNV ENTOR Atty Patnted Dec. 10, 1912.

3 SHEETS-$131331 3.

WITNESSES IBM 1 W UNITED STATES PATENT oEEIoE. '2

JOSEPH FAWELL, F PITTSBURGH, PENNSYLVHIA.

BOILING-MILL.

' Specification of Letters Patent. Application filed March 8, 1912.Serial No. 882,878."

p 7 To all whom it may concern:

Be it'known that I, Josarn FAWELL, re siding at Pittsburgh, in thecounty of Allegheny and State of Pennsylvania, a citizen of the UnitedStates, have invented or discovered certain new and useful Improvementsin Rolling-Mills, of which improvemerits the following is aspecification.

.In an application Serial No. 678,046, filed February 16, 1912,:1 havedescribed and claimed "certain improvements in rolling' mill plantswherein roughing and finishing mills, both of the three high type, arearthat there may ranged with the rolls of the several mills in orapproximately in a common vertical plane and the rolls ofthe severalmills driven by a common motor. It occasionally happens not 'be anyorders requiringthe operation of the finishing mills, although there maybe orders for material such as billets, which can be produced in aroughing mill, and preferably in one of the two high reversing type.

The invention described herein has for its object the combination with aroughing mill convertible from a nonreversible three high type to areversible two high type of a reversible motor and a train of rolls ofthe three high type driven through rolls of the roughing mill.

In the accompanying drawings formin a part of this specification, Figure1 is ap an view of a plant embodying my improvement; 2 is an elevationshowing the mill adjusted for the combined operation of the roughing andfinishing mills; Fig. 3 is a similar view showing the mill adjusted forthe operation of the roughing mill alone; Fig. 4 isa sectional elevationof the three high roughing mill showing the feed table on one sidethereof, and Fig. 5 is a similar view of a two high mill showing thetable with ingot manipulating means on the reoeiving side of the mill.

In the practice of my invention I employ a reversible motor A of anysuitable form or construction. The shaft 1 of this motor is operativelyconnected in any desired manner to the journal of one, preferably themiddle one, of the three high stand of pinions B,through which the rollsof the roughing mill 0 are driven. This mill is so constructed that itmay be readily converted from a three to a two high type of mill. Thehousings 2 have their windows of suflicient length t permit of thearrangement therein of the bearings of the three rolls 3.Interchangeable caps 4 and 5 are provided, one of the caps as 4: beingprovided with holding down screws 6 for maintaining the rolls in properoperative relation. The

housing cap 5 has mounted thereon the fluid pressure cylinders 7 havingtheir plungers 8 connected to the cross-head 9 which in order to reducethe height of the mill is passed through the windows of the housings, asshown in 'Fig. 3. .This cross-head is ada ted to be connected to thejournal boxes 0 the upper roll of the two high mill shownin alwaysnecessary, to drive all of the rolls,

which have the journals at one end con- Patented Dec. 10, 1912. i

nected by spindles 13 to the pinions of the three high stand B. When itis desired to operate the three high finishing mills E, F, G, etc., ajournal of one of the rolls 3 is connected by a spindle 14 to thejournal of one of the pinions of the three high stand D, as shown inFig. 2. The journals of the pinions of stand D are connected by spindles15 to the journals at one end of the rollsof stand E and the oppositeends of these rolls are similarly connected to the.

rolls of stand F, and so on through the series of finishing mills.

When the three high mill C is converted to a two ashereinbefore'described, the rolls 12 are connected by spindles to two ofthe pinions of the stand B,- said connection being so constructed as topermit of the vertical adjustment of the upper one of the rolls 12. 'Itwill beunderstood that when the roughing'mill has been converted to thetwo high type, the motor A will be so operated as to rotate the rolls 12first in one direction and then in the reverse direction.

As described and shown in the application referred to feed tables H andI are provided 'on both sides of the line of mills, the table on thedelivery side of the line of mills being laterally movable to positionsin is laterally movable to positions in line with the finishing mills,and a table K having only a vertical movement is arranged in line withthe mill Con the receiving side thereof, and said table is provided witha manipulator or billet turning and shifting device 18 to be used inConnection with the mill when converted to the two high type, The tablesH I and K have portions adjacent to the mills vertically movable, sotha-tthey may be used to serve the roughing mill when of the three hightype and also the finishing mills. As stated in said application thevertical movements of the tables H and I are variable, as is required bythe difference in diameter of the roughing and finishing rolls. Thevertical movements of the tables can be efl ected by any, suitable meansas eccentrics 16 and 17 arranged at different distances from the pivotalpoints of the tables, as fully set forth in said application. It will beunderstood that when the two high reversible rough mill is employedneither lateral nor vertical movement .of thetable I is required andthat the direction of rotation of the rollers of the feed K and I isreversed with the reversal of the rolls 12.

It will be readily understood by those skilled in the art, that by myimprovement the several units of my improved plant can be operatedsimultaneously when required, and when the operation of the finishingmills is not justified, that they can be disconnected, and the roughingmill converted to arreversible mill and entirely different articlesrolled thereon which heretofore required a separate and independentroughing mill engine, etc.

I claim herein as my invention:

1. In a rolling mill plant, the combination of a reversing engine, athree high stand of pinions, a roughing mill convertible from a three toa two high type, and detachable driving connections from the pinions tothe ,rolls of the roughing mill.

2. In a rolling mill plant, the combination of a reversing engine, athree high stand of pinions, a roughing mill convertible from a threehigh to a two high type, detachable connections from the pinions to therolls, a

train of three high finishing mills and a detachable connection from aroll of the roughing mill to the rolls of the finishing train.

' In testimony whereof, I have hereunto set my hand.

JOSEPH FAWELL.

Witnesses:

WILLIAM R. JOHNSTON, THOMAS B. JoYoE.

